Spark plasma sintering of double-walled carbon nanotubes

Christophe Laurent (1) , Geoffroy Chevallier (1) , Alicia Weibel (1) , Alain Peigney (1) , Claude Estournès (1)

1 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux

Bulk samples of double-walled carbon nanotubes are prepared for the first time. The best spark plasma sintering conditions are (1100 °C, 100 MPa). Raman spectroscopy and scanning electron microscopy show that the nanotubes are undamaged. The density is equal to 1.29 g cm−3 and the pores are all below 6 nm in diameter. The electrical conductivity is equal to 1650 S cm−1. The transverse fracture strength is equal to 47 MPa.

Mots clés: Spark plasma; Carbon nanotubes; CNTs

Domaines: Matériaux

Christophe Laurent, Geoffroy Chevallier, Alicia Weibel, Alain Peigney, Claude Estournès. Spark plasma sintering of double-walled carbon nanotubes. Carbon, 2008, 46 (13), pp.1812-1816. ⟨10.1016/j.carbon.2008.08.020⟩. ⟨hal-03590879⟩